ACARA Filtered Power Connector
AFC
65A, 100A, 150A, 250A
• The ACARA power connector family offers significant size reduction
• Best filtering performance with integrated feedthrough capacitor
• High current and high performance contact
• Reduced costs of components and assembly
• Die ACARA Power Connector Familie offeriert eine sehr kompakte
Bauform
• Beste Dämpfungsleistung durch integriertem Durchführungs-
kondensator
• Hochstrom und highperformance Kontakte
• Verringerung der Montage- und Bauteilekosten
• Les connecteurs de la série ACARA power connecteur se présentent
sous une forme très compacte
• Excellentes performances de filtrage grâce à un condensateur
feedthrough intégré
• Contacts de très haute qualité, adaptés aux voltages importants
• Réduction des coûts d’assemblage et de composants
Technical specifications
Maximum operating voltage:
Typical operating voltage:
Operating frequency:
Current ratings:
High test voltage for capacitors:
Connect/disconnect cycles:
Temperature range:
Flammability corresponding to:
Capacitor:
Y2, 300VAC (EN132400) / 300VAC (UL1283)
Y4, 130VAC (EN132400) / 130VAC (UL1283)
48VDC
DC to 60Hz
65 to 250A @ 50°C (UL1977/UL1283)
Y2 3000VDC for 2 sec
Y4 1700VDC for 2 sec
500 cycles
-25°C to +100°C (25/100/21)
UL 94V0
Y2 and Y4 according to EN132400
Schaffner EMV AG und Anderson
Power Products, Marktführer im Bereich
von EMV und Kontaktierungssystemen,
sind eine Partnerschaft eingegangen für
die Herstellung von EMV-Filter integ-
riert im Steckersystem ACARA. Das
ACARA System hat eine breite Variation
an Kondensatorwerten. Diese garantie-
ren hohe Dämpfungseigenschaften bis
in den Bereich von 10GHz.
Das mechanische Design ist konzipiert
für schnelles Montieren. Die polarisierte
Steckerverbindung und der bewährte
Verriegelungsmechanismus sichern eine
einwandfrei funktionierende Applikation
und dennoch entfernbare Kontaktierung
mit dem Ziel, Montagekosten sowie
Bauteilekosten zu reduzieren.
Approvals
ACARA product has several patents pending
Schaffner EMC and Anderson Power
Products are leaders in the fields of
EMI suppression and power intercon-
nect and have partnered to produce
the ACARA system of EMI filtered
electrical power connectors. Filtered
connectors are available in a variety of
capacitance values. ACARA capacitors/
connectors offer excellent EMI sup-
pression to very high frequencies up to
10GHz.
The mechanical design has been devel-
oped for a fast mounting and the positive
latch mechanism keeps mated connec-
tors firmly together. The polarized
housings (with user selective key for a
secure application and removable fil-
tered power connecting) is a big advan-
tage. The ACARA concept reduces both
component and assembly costs.
Les Stés Schaffner EMC et Anderson
Power Products, leaders sur le marché
de la compatibilité électromagnétique
et des systèmes de connexions ont
conclu un partenariat en vue de produire
des filtres d’antiparasitage intégrés dans
les prises électriques ACARA. Le sys-
tème ACARA offre une large palette de
condensateurs permettant d’obtenir des
excellentes valeurs de compensation
jusqu’aux fréquences de 10GHz.
La conception mécanique et le design
en permettent un montage rapide. La
connexion par prise, pôle à pôle, ainsi
qu’un mécanisme de verrouillage
éprouvé assurent à l’utilisateur une
application ayant un fonctionnement sûr
tout en permettant d’ôter le contact en
vue de réduire les coûts de montage et
de composants.
Concept
The connector has been designed to reduce the total costs of ownership and maxi-
mize the modularity of rack design or fast connectable applications. The ACARA
connectors are manufactured to accommodate very high current connections up
to 250A and for high frequency filtering up to 10GHz.
The ACARA connector keeps inventory levels down and cuts cost. Keying of the
connector ensures that the cables and the connector are mated correctly.
The capacitor has a very low internal series inductance. This provides a sup-
pression performance over a much wider frequency rang than a conventional
two-wire capacitor of equivalent value.
Due to the leads a normal capacitor
has a self-inductance. These leads
operate like small series
inductances.
Figure 1. Typical frequency response of a 1µF feedthrough capacitor
compared to the ideal theoretical response.
Figure 2. Typical frequency response of a conventional 1µF capacitor
with 20mm leads compared to the ideal theoretical response.
The ACARA connector has a current-carrying conductor passing through the center of the capacitor. This co-axial conductor
is one terminal of the capacitor. The other terminal is the metal outer casing of the capacitor, which was specifically designed
for being attached to a grounded metal bulkhead. This design is common to all ACARA filters and ensures that any radio
frequency currents carried on the central conductor are shunted to earth by the capacitor.
Because of the extremely low series inductance resulting from this type of construction, the self-resonant frequency of an ACARA
capacitor will be very high. A typical frequency response is shown in figure 1. As frequency increases, the impedance of the
feedthrough capacitor decreases continuously to provide excellent performance to beyond 10GHz. Some small resonances
can be expected in the performance characteristics of ACARA capacitors as shown in figure 1. These are usually attributable
to distributed inductance within the capacitor and can cause its high frequency response to vary slightly from the theoretical.
With the ACARA filtered connectors you will have the best performance. High frequency (line) will be filtered to the ground.
Applications like computer systems will therefore be protected. The combination of connector and filter results in an effective
solution to simplify the contacting concept.
Features and advantages
•
Connector and filter as all in one solution
•
Filtering for high frequencies up to 10GHz
•
Keying of the connector insures that the cables and the connector are mated correctly
•
Reverse polarity protection
•
High currents up to 250A
Applications
High frequency applications in an enclosure, where a connector and a filter is required. Computer systems, 48VDC systems
(widely used in telecom), 18V battery back-up power plants where power needs to be readily available, large enterprise servers
migrating towards 48VDC. In all of these applications, on site installation is often a second thought and overlooked when
budgeting for the total installed cost.
Connector
AFC100, 2 AWG wire
AFC100, 2 AWG wire
AFC250, 2 AWG wire
AFC250, 2 AWG wire
The success of ACARA depends on a very low contact resistance, and this design provides a very high quality material and
a clever metallization process so there is no risk of overheating effects. The Hot-pluggable connector has a very low arcing
between the male and female connector. ACARA is designed for 500 connect/disconnect cycles and 250 cycles under nominal
load according UL1977 and EN 60984 giving optimum performance and flexibility. Servers, Base stations, and telecom equip-
ment can easily be connected and disconnected.
The material used in the contact and the mechanical construction of ACARA are important to reach the service conditions of
the customer application. The diagrams above show a typical temperature rise of a 100A and 250A connector. The contact
resistance of the connector is most important. For example with 100A nominal load, the temperature rise of the contact is
only approximately 17°C.
The patented ACARA connector family offers fast easy connecting and a long lifetime with hundreds of connect/disconnect
cycles. To achieve this high conductivity copper is used which gives a low temperature rise. The copper material has good
spring properties at contact interface and with good formability for crimping to finely stranded copper conductors. The spring
system provides high mechanical shock/vibration stability with no contact bounce.
Typical insertion loss
100nF
220nF
470nF
600nF
1000nF
2100nF
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